Beth,
I am glad you didn't give in to the addict thoughts and use. One thing I found that really helped me when I got in that mode of the dark and dangerous thoughts was to just STOP. I mean, to consciously put the brakes on that line of thought and then REPLACE the thoughts with other, more positive thoughts. The replace part was so very necessary for me to do and once that dawned on me, and I started practicing it, it became easier and easier to banish the using thoughts. Even if I had to basicallly lie to myself to think 'good' thoughts when I wasn't in a 'good' mood, it still seemed to work. I hope this helps, I only know what worked for me.
~EG~